It occured to me that I have an old Adafruit Motor Shield (http://www.ladyada.net/make/mshield/index.html) lying around, I was wondering if using this PWM technique I might be able to control my motors with this. In addition I'd like to thank you veyr much for your help so far.

Thanks for the reply. As I'm rather new to the Arduino platform could you further explain my options in regards to PWM?

Hi,

I'm rather new to the Arduino platform and am working on a project where I need to control 2 12VDC 4 Amp motors bi-directionally, I looked over motor shields but it appears these motors are too high amperage for use with a motor shield. Any suggestions on how to control both of these motors would be much appreciated.

All right, Thank you Very much!

Hi,

New to the Arduino platform and had a quick question in regards to LDRs: I have 5 LDRs which I would like to read the amount of light from with my Arduino Uno, I'm connecting all 5 of their wires together and attaching it to the 3V pin and am wanting to read all of the values received in the analog read ports. The question which I have is can I share the ground for these LDRs, so could I attach 1 wire from every LDR together and then attach that to a resistor and to ground or do I need a resistor for each and every one which I can then connect to ground.

Any help would be much appreciated.